Question

以下查询无需添加额外的"OR"参数即可正常运行。

SC和CC的查询结果由于某种原因没有格式化为WHERE子句，并且在我的参数之外返回了几个日期。我应该如何更改此语法以确保我的WHERE子句影响OR语句？

SELECT DISTINCT case_number, case_filed_date
FROM [case]
WHERE case_filed_date BETWEEN '2012/07/01' AND '2012/09/30'
AND case_number LIKE '%CA%' OR case_number LIKE '%SC%' OR case_number LIKE '%CC%'

Answer 1

添加括号

SELECT DISTINCT case_number, case_filed_date
FROM [case]
WHERE case_filed_date BETWEEN '2012/07/01' AND '2012/09/30'
AND 
(
    case_number LIKE '%CA%' OR case_number LIKE '%SC%' OR case_number LIKE '%CC%'
)

and强于or

Answer 2

使用括号尝试此操作，因为AND的优先级高于OR： -

SELECT DISTINCT case_number, case_filed_date
FROM [case]
WHERE case_filed_date BETWEEN '2012/07/01' AND '2012/09/30'
AND 
(case_number LIKE '%CA%' OR case_number LIKE '%SC%' OR case_number LIKE '%CC%')

过滤Date SQL Server 2008时的多个OR语句

2 个答案: